cache compiled result

yahoo · May 14, 2015 · 842ecdd · 842ecdd
1 parent 97d14ff
commit 842ecdd
Showing 1 changed file with 8 additions and 6 deletions.
diff --git a/lib/router.js b/lib/router.js
@@ -10,6 +10,7 @@ var pathToRegexp = require('path-to-regexp');
 var METHODS = {
     GET: 'get'
 };
+var cachedCompilers = {};
 
 /**
  * @class Route
@@ -133,24 +134,25 @@ Route.prototype.match = function (url, options) {
  * @for Route
  */
 Route.prototype.makePath = function (params) {
-    var route = this.config.path,
+    var routePath = this.config.path,
         compiler,
         err;
 
-    if (Array.isArray(route)) {
-        route = route[0];
+    if (Array.isArray(routePath)) {
+        routePath = routePath[0];
     }
 
-    if (typeof route === 'string') {
-        compiler = pathToRegexp.compile(route);
+    if (typeof routePath === 'string') {
+        compiler = cachedCompilers[routePath] || pathToRegexp.compile(routePath);
+        cachedCompilers[routePath] = compiler;
 
         try {
             return compiler(params);
         } catch (e) {
             err = e;
         }
     } else {
-        err = new TypeError('route must be a String path');
+        err = new TypeError('route path must be a string');
     }
 
     debug('Route.makePath failed, e = ', err);